A pal said he last saw [Asher] Vongtau early Saturday, after his friend left his dorm room. “I don’t want to elaborate on what we were doing in there"...

Cops said they believe Vongtau somehow fell into the gap, which fire officials said was six to 18 inches wide. It was not clear how far he fell. The dorm building is 18 stories high and the victim lives on the fifth floor.